Data communication system, data communication method, and non-transitory computer readable storage medium

Abstract

A data communication system includes: a first communication node having communication interfaces for sending data to a target node via one communication interface; and a second communication node for sending the data to the first communication node, with the one communication interface as a sending destination. The first communication node has a first conversion processing unit that converts a sending source address of the data to be sent to the target node into an address of the second communication node. The second communication node has a second conversion processing unit that converts a sending destination address of the data received from the target node into an address of the one communication interface.

What is claimed is: 
     
         1 . A data communication system comprising:
 a first communication node having a plurality of communication interfaces and capable of sending data to a target node via one communication interface selected from the plurality of communication interfaces; and   a second communication node capable of sending the data to the first communication node, with the one communication interface selected from the plurality of communication interfaces as a sending destination, wherein:   the first communication node has a first conversion processing unit that converts a sending source address of the data to be sent to the target node into an address of the second communication node; and   the second communication node has a second conversion processing unit that converts a sending destination address of the data received from the target node into an address of the one communication interface selected from the plurality of communication interfaces.   
     
     
         2 . The data communication system according to  claim 1 , wherein:
 the second communication node converts, by the second conversion processing unit, the sending destination address of the data that satisfies a predetermined condition among the data received from the target node, into the address of the one communication interface selected from the plurality of communication interfaces.   
     
     
         3 . The data communication system according to  claim 1 , wherein:
 the first communication node can convert, by the first conversion processing unit, the sending source address of the data to be sent to the target node into the address of the one communication interface selected from the plurality of communication interfaces, instead of the address of the second communication node.   
     
     
         4 . The data communication system according to  claim 1 , further comprising:
 at least one of (i) a circuit and (ii) a processor having a memory storing computer program code, wherein:   the at least one of the circuit and the processor having the memory is configured to cause the data communication system to provide at least one of: the first communication node; and the second communication node.   
     
     
         5 . A data communication method for a data communication system including:
 a first communication node having a plurality of communication interfaces and capable of sending data to a target node via one communication interface selected from the plurality of communication interfaces; and   a second communication node capable of sending the data to the first communication node, with the one communication interface selected from the plurality of communication interfaces as a sending destination,   the data communication method comprising:   a first conversion process in the first communication node for converting a sending source address of data to be sent to the target node into an address of the second communication node; and   a second conversion process in the second communication node for converting a sending destination address of data received from the target node into an address of one communication interface selected from the plurality of communication interfaces.   
     
     
         6 . The data communication method according to  claim 5 , wherein:
 the second conversion process in the second communication node includes converting the sending destination address of the data that satisfies a predetermined condition among the data received from the target node, into the address of the one communication interface selected from the plurality of communication interfaces.   
     
     
         7 . The data communication method according to  claim 5 , wherein:
 the first conversion process in the first communication node includes converting the sending source address of the data to be sent to the target node into the address of the one communication interface selected from the plurality of communication interfaces, instead of the address of the second communication node.   
     
     
         8 . A non-transitory tangible computer readable storage medium comprising instructions being executed by a computer in a data communication system including:
 a first communication node having a plurality of communication interfaces and capable of sending data to a target node via one communication interface selected from the plurality of communication interfaces; and   a second communication node capable of sending the data to the first communication node, with the one communication interface selected from the plurality of communication interfaces as a sending destination,   the instructions causing the computer to execute:   a first conversion process in the first communication node for converting a sending source address of data to be sent to the target node into an address of the second communication node; and   a second conversion process in the second communication node for converting a sending destination address of data received from the target node into an address of one communication interface selected from the plurality of communication interfaces.   
     
     
         9 . The data communication program according to  claim 8 , wherein:
 the second conversion process in the second communication node includes converting the sending destination address of the data that satisfies a predetermined condition among the data received from the target node, into the address of the one communication interface selected from the plurality of communication interfaces.   
     
     
         10 . The data communication program according to  claim 8 , wherein:
 the first conversion process in the first communication node includes converting the sending source address of the data to be sent to the target node into the address of the one communication interface selected from the plurality of communication interfaces, instead of the address of the second communication node.